/Engine/Source/Runtime/Experimental/Chaos/Public/GeometryCollection/GeometryCollectionClusteringUtility.h
Recursively Add all children to output bone list from source bone down to the leaf nodes
static void RecursiveAddAllChildren ( const [TManagedArray](API\Runtime\Chaos\GeometryCollection\TManagedArray)< [TSet](API\Runtime\Core\Containers\TSet)< int32 >> & Children, int32 SourceBone, [TArray](API\Runtime\Core\Containers\TArray)< int32 > & BonesOut )